Chapter 3

Technical

Specifications

This section discusses the physical environment associated with the LSI8751D. The LSI8751D mechanical drawing is shown in Figure 1.1. This section also includes these topics:

Section 1.1, “Physical Environment,” page 1-1

Section 1.2, “Operational Environment,” page 1-3

3.1Physical Environment

This section discusses the physical, electrical, thermal, and safety characteristics of the LSI8751D. This board complies with electromagnetic standards set by the FCC.

3.1.1 Physical Characteristics

The dimensions of the LSI8751D are 5.00 x 3.25 inches (127 x 82.552 mm). PCI connection is made through the edge connector J1. Internal SCSI connection is made through the 68-pin high density connector J2. External SCSI connection is made through the 68-pin high density connector J3. The J3 connector extends through the standard bracket, which is attached to the face of the connector outside of the cabinet where the LSI8751D is installed. The bracket is a standard type with a cutout to accommodate connector J3. The J4 connector is for the Busy LED connection using a 4-pin, one-row right-angle header. The component height on the top and bottom of the board follows the PCI specification.

LSI8751D PCI to SCSI Host Adapter

3-1